This commemorative stamp pair was issued by China in 1999 to celebrate the Kunming International Horticultural Exposition, an important global event highlighting environmental awareness and horticultural achievements. The 200-fen stamp features a stylized green tree integrating expo architecture, symbolizing ecological harmony and sustainable development. The 80-fen stamp presents a vibrant peony bloom above a globe motif, representing China’s floral heritage and international cooperation. Bright modern artwork and thematic relevance make this set a popular collectible among topical collectors of flora, world exhibitions, and modern Chinese commemoratives. Well-preserved mint pairs are especially sought after for thematic exhibitions and modern Asia collections.